In late winter 2016/early spring 2017, 101 trout were born at Djurgården at the old aquarium. They have since moved to the Baltic Sea Science Center at Skansen, and now Skansen’s trout are moving out.
Djurgården’s visitors came to watch when the trout were released at the protected bay below the Scanian mine on Sunday 8th September at 10:00.
Brown trout (Salmo trutta)
The trouts being released by Skansen were bred artificially. The mature fish were collected and had spawn and milk taken from them before being released back into the water. The eggs were then left in an incubator until they were ready to hatch. A newly-hatched trout has a yellow yolk sac on its stomach, which keeps it nourished so that it can survive without needing to hunt. Once the fish has absorbed the yolk sac, it can start to hunt and eat for itself.
Their young then return to the sea when they are young adults. Skansen’s trout were born in winter 2016/spring 2017, so by this point they were just over two and a half years old and able to survive well on their own. Releasing 101 trout in one go is a far cry from the number of fish that are released in Sweden each year, but it is unusual for the general public to be able to get as close to the fish as they were able to here. In carrying out trout stocking, Skansen wants to inform people about the Baltic Sea and its species; the brown trout is an important species for the food chain and humans.
Photo: S Beskow/Azote Källa: havet.nu
Skansen’s trout stocking encourages further protection and restoration of ecosystems through action and education (14.2)